gun-metal

n [U] alloy of copper and tin or zinc 炮铜; 青铜（铜与锡或锌的合金）: [attrib 作定语] gun-metal grey, ie a dull blue-grey colour 铁灰色（暗蓝灰色）.

Gulf Stream, gull, gullet, gullibility, gullible, gullibly, gully, gulp, gum, gum-tree, gumbo, gumboil, gumboot, gummy, gumption, gun, gun cotton, gun dog, gun-carriage, gun-deck, gun-port, gun-runner, gun-running, gunboat, gunfire, gunge, gunman, gunner, gunnery, gunpoint, gunpowder, gunroom, gunshot, gunsmith, gunwale, gurgle, Gurkha, guru, gush, gusher,